Minnesota Timberwolves forward Karl-Anthony Towns has been diagnosed with a torn meniscus in his left knee that could sideline the former NBA Rookie of the Year for the rest of the regular season.

Towns was originally ruled out for Thursday’s game at the Indiana Pacers due to left knee soreness.

The four-time All-Star hasn't put up his usual solid numbers lately, averaging 16.0 points and 7.5 rebounds in his last four games.

Coming into Thursday, Towns had missed just two games all season and was averaging 22.1 points and 8.4 rebounds in 60 contests.

Minnesota (43-19) is tied with Northwest Division foe Oklahoma City for the best record in the Western Conference.

The Timberwolves haven’t advanced past the first round of the playoffs since losing to the Los Angeles Lakers in the West finals in 2004.